Even if that was true (and personally, I don't believe it is), the Crown would still not have the power to intervene. Parliament is supposed to deal with those issues. The Monarch can only interfere with Parliament in certain particular cases.
The Queen has the right to be consulted, to encourage and to warn - even if she shared your concerns, all she can do is tell the Prime Minister in private that they shared them.
This is British constitutional law and convention, and the Monarch must follow it. She cannot interfere just because she thinks there's a problem.
They might both be deposed shortly, either by Britons themselves, Muslims or the E.U... by their own inactions...